| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 07, 2013 | Sale | $44.32 | 11,790 | 522,497 | 46,312 | Feb 08, 2013, 04:15 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 08, 2013 | Sale | $44.07 | 1,402 | 61,793 | 44,910 | Feb 08, 2013, 04:15 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 07, 2013 | Option/RSU Exercise | $21.14 | 11,790 | 249,241 | 58,102 | Feb 08, 2013, 04:15 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | May 08, 2012 | Option/RSU Exercise | $17.18 | 50,000 | 859,000 | 80,469 | May 10, 2012, 06:32 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | May 08, 2012 | Sale | $42.80 | 50,565 | 2,164,329 | 30,469 | May 10, 2012, 06:32 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | May 04, 2012 | Sale | $42.74 | 485 | 20,729 | 24,469 | May 04, 2012, 01:47 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 28, 2012 | Sale | $38.55 | 23,438 | 903,535 | 24,954 | Feb 29, 2012, 06:18 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 28, 2012 | Option/RSU Exercise | $18.95 | 23,438 | 444,150 | 45,458 | Feb 29, 2012, 06:18 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 07, 2012 | Option/RSU Exercise | $16.15 | 47,603 | 768,653 | 50,995 | Feb 08, 2012, 05:31 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 07, 2012 | Sale | $38.07 | 47,603 | 1,812,211 | 24,954 | Feb 08, 2012, 05:31 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 08, 2011 | Option/RSU Exercise | $14.82 | 10,000 | 148,200 | 34,488 | Nov 09, 2011, 04:30 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 08, 2011 | Sale | $36.15 | 10,000 | 361,500 | 24,488 | Nov 09, 2011, 04:30 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Aug 31, 2011 | Option/RSU Exercise | $14.82 | 10,000 | 148,200 | 29,709 | Sep 01, 2011, 06:34 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Aug 31, 2011 | Sale | $32.22 | 10,000 | 322,213 | 24,488 | Sep 01, 2011, 06:34 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | May 04, 2011 | Sale | $37.45 | 551 | 20,638 | 18,260 | May 06, 2011, 06:26 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 10, 2011 | Sale | $41.20 | 3,281 | 135,177 | 18,811 | Feb 11, 2011, 07:51 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Feb 08, 2011 | Tax Payment (Shares) | $41.51 | 3,119 | 129,454 | 22,092 | Feb 10, 2011, 08:14 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 22, 2010 | Option/RSU Exercise | $12.10 | 13,683 | 165,564 | 32,268 | Nov 24, 2010, 11:06 AM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 22, 2010 | Sale | $39.05 | 13,683 | 534,321 | 18,585 | Nov 24, 2010, 11:06 AM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 19, 2010 | Sale | $39.25 | 920 | 36,110 | 18,585 | Nov 23, 2010, 12:37 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 19, 2010 | Option/RSU Exercise | $12.10 | 920 | 11,132 | 19,505 | Nov 23, 2010, 12:37 PM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 18, 2010 | Option/RSU Exercise | $12.10 | 16,751 | 202,687 | 27,933 | Nov 23, 2010, 11:10 AM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Nov 18, 2010 | Sale | $39.30 | 16,751 | 658,314 | 18,585 | Nov 23, 2010, 11:10 AM | |
| POWI | POWER INTEGRATIONS INC | Clifford Walker | VP Corporate Development | Aug 13, 2010 | Sale | $31.37 | 3,200 | 100,378 | 19,959 | Aug 17, 2010, 12:31 PM |
